I've been having issues with my delta. I'm using Repetier 0.92.8. I'm still in the calibration stages, but I've hit a few snags. I've done as much manual calibration as I can. I've been able to get G33 to successfully run. I'm certain I've got the extruder dialed in as well as the extrusion settings in slic3r. Here is what is weird: First layer goes down great. After that, the next 4-5 lby MrBaz - Repetier
Does that kit use a RAMBO or RAMPS setup? If the drivers are removable - swap out the X-axis for another one.by MrBaz - Delta Machines
QuotePaul Wanamaker Hi Bolec, Lowering Delta segments per second cuts down on the calculations. You may not notice much difference in quality with a lower value, to a point. So, you have a Mini Rambo - that's an 8-Bit Arduino. Are you using a Full Graphics display? Depending on your configuration (steps per mm, printing speed, move speed) there may not be enough processing power to calculateby MrBaz - Delta Machines
QuoteTbirdMan my bed is a single unit, the heater is directly attached to the aluminum bed. I have a paper/bubble-wrap shipping bag wedged on the underside insulating the bottom. the top is just bare aluminum with masking tape. the bed is mounted to the chassis by three ~1cm brass standoffs, so I suppose it can lose a bit of heat there, but likely not much. You also have the benefit of the glassby MrBaz - Printing
How do you have the bed assembled? I have my Kapton heater sandwiched between an aluminum heat spreader and 1/2" MDF board. I then place a mirror on top of the aluminum. The only place for the heat to escape is through the glass build surface (heat losses creeping through the MDF board are negligible). The glass does not like to readily release heat to the air as compared to bare aluminum. Ediby MrBaz - Printing
Quotebolec Well... I think i was happy too early. Just started a print and it does it again. It doesnt do it when moving the axis in Ponterface, but when I started the print from SD card, it does it again. Try setting it higher. Plug in 200. Let us know what that does.by MrBaz - Delta Machines
Quotebolec Oh, that worked!! Thank you very much!! I owe you a pint I will have finally some sleep today. I already spent 3 days looking for mechanical faults What did you change your settings from and to?by MrBaz - Delta Machines
QuoteTbirdMan it will hit 110 if I have the bed covered, but if the part cooling fan is on at all it plummets. I know how PID controllers work, I have programmed a few myself. that much error should have the PWM running 100% dty cycle. I turned off PID and went straight bang-bang and it took over 10min to go from 100 to 110. It is not PID, 90W is just under-powered for this size bed. I think theby MrBaz - Printing
QuoteTbirdMan Ok, specs. My PSU is a 550W ATX power supply, one 12V 45A rail run through 8 wires (two for each + and - lead) to the RAMPS , so more then enough. As the digital dentist pointed out you are misunderstanding Ohm's law, doubling voltage for the same resistance quadruples power (P=V^2/R) and only doubles current (I=V/R) meaning it is more efficient. the bed is using PID that I ran theby MrBaz - Printing
Quotethe_digital_dentist MrBaz, you're absolutely wrong regarding power and Ohm's law. Increasing the supply voltage will increase current and power, and therefore, heat. The bed heater is a resistor. Ohm's law applies- current=voltage/resistance. Power=current^2 * resistance TbirdMan, a dc-dc converter is a power supply. Semantics aside, you can increase power by increasing applied voltaby MrBaz - Printing
I don't think you are looking at this the correct way. A heater with 1.6ohms of resistance is going to pull 7.5A running on 12V (90W output). No power supply is going to make your heater pull more wattage. Higher voltage will simply lower current draw, but keeps the same wattage. Ohm's Law. If you are using a computer supply, you need to verify if it is a single or double rail system. Whatby MrBaz - Printing
What material are you printing? 210*C is too low for ABS. Ramp that thing up to at least 225*C. Maybe 230*C.by MrBaz - Printing
Using MakerGeeks PETG 60*C bed 250*C hotend I have verified my temps with an IR temp gun - max 3* deviation. Sticks just fine to clean glass mirror. I have to pry up the corners a little and work around the edges of large surface area prints with a razor blade to get them to loosen. Nothing worrisome so far.by MrBaz - Printing
QuoteFletch I'm away for a week now but when i get back to it i'll try and keep this thread and the gallery updated. I'll have to work out dimensions for print area once its built! Which delta have you built? I designed my own custom delta. 350mm print diameter with 470mm Z height. My prototype is on thingiverse (BazBot). I'm on V2 of which I will eventually be publishing to thingiverse. Youby MrBaz - Delta Machines
Picture of sculpture after final painting?by MrBaz - Look what I made!
Sounds a lot like my delta printer (in size at least). I enjoy build threads.by MrBaz - Delta Machines
I have my kapton heater adhered to an aluminium heat spreader. That is then"glued" (using high temp silicone adhesive) loosely to a base of 1/2" MDF. This acts as a great insulator and also gives an added level of support to fight any flexing. (My build plate is 350mm in diameter). Then I place my mirror build surface on top of the aluminum build plate. I've had great success thus far. My FSRsby MrBaz - Delta Machines
Are you using an FSR controller board, or are they wired directly to the DUET?by MrBaz - Delta Machines
Today I made some mechanical adjustments and reaccomplished my standard calibration sequence and guess what? It prints just fine now?!by MrBaz - Delta Machines
My delta design uses 1" extrusions (25.4mm) Search thingiverse for BazBot. It is a work in progress in which I will be uploading the newer completed printed pieces and info shortly.by MrBaz - Extruded Aluminum Frames
Quotebgkdavis Then its not your slicer if your G codes work in the correct direction when doing MDI yet work in the opposite direction when running a tape, then I really don't know whats going on... have you tried changing your firmware? I'm running Repetier 0.92.8. I'd like to stick with Repetier. Should I try one version back?by MrBaz - Delta Machines
I've attached a gcode snipet below. I cut out a lot of the extraneous code (just X & Y movements) so it is easier to read. You can see that each successive Z movement is in the correct direction. What gives? ; generated by Slic3r 1.2.9 on 2016-03-21 at 14:28:45 ; external perimeters extrusion width = 0.40mm ; perimeters extrusion width = 0.67mm ; infill extrusion width = 0.67mm ; solidby MrBaz - Delta Machines
Subbedby MrBaz - Delta Machines
Quotebgkdavis OK, sounds like your slicer, check the G code itself, if you do a search for every Z parameter you should see that they increase as you progress through the file, if they decrease tehn its definately a slicer error, if they increase then its really weird, I don know if there is a G code or M code that can invert an axis in code I'm using Slicer that is built into Repetier Host. Whaby MrBaz - Delta Machines
Quotebgkdavis Have you checked the G code output from your slicer, this problem could be caused by a Z inversion in the slicer software can you manually enter G code with repetier, try entering G1 Z0, followed by G1 Z0.2.... does the extruder move down? IF the extruder moves down for the second command then you have the Axes inverted, and probably the jog buttons inverted too.... the two inversby MrBaz - Delta Machines
Tagged for easier searching later.by MrBaz - Delta Machines
In the finishing stages of building my custom Delta printer. Using repetier firmware and repetier host. I can manually jog everything just fine. X left moves the effector left. X right moves it right. Y back/forward moves it back/forward. Z up/down moves it up/down appropriately. Homing works just fine (homes to axis maxes - UP). I've set the endstop offsets, axis mins. I can even run aby MrBaz - Delta Machines
My vote is for the airtripperby MrBaz - Delta Machines
Technically, a delta bot using the maximum usable area it can does not print in a true full circle. At a point, you will reach an error high enough at extremes that you are actually bounded by a triangle with rounded corners.by MrBaz - Delta Machines
Quoted3delta3d QuoteMrBazComparatively, the linear rails are the most expensive way to go. The cheapest I found was an overstock place that, surprise!, no longer has stock. Next cheapest is AliExpress. I wanted something that would add rigidity to the frame, still be extremely accurate, not as loud as rod bearings, and simple easy on the maintenance. I guess the expense was justified to me.by MrBaz - Delta Machines